Window frame and sash construction



Aug. 2, 1927. v 1,637,731

H. E. CAMPBELL WINDOW FRAME AND SASH CONSTRUCTION Filed Jan. 27. 1926INVENTOR fifizzv CAMPEEZL LUAZ ATTORNEYS Patented Aug. 2, 1927.

UNITED STATES PATENT OFFICE.

HARRY E. CAMPBELL, OF BALTIMORE, MARYLAND, ASSIGNOR TO CAMPBELL METALWINDOW CORPORATION, OF BALTIMORE, MARYLAND, A CORPORATION OF MARY- LAND.

, WINDOW FRAME AND SASH CONSTRUCTION.

Application filed January 27, 1926. Serial No. 83,999.

The present invention relates to windows of the type having openingsthrough the inner .wall of the jamb, plates extending through suchopenings, and in which the functional relations between the sashes andthe jambs take place behind the inner wall of the jamb.

Iaim to provide a window which can be made relatively cheaply and whichwill be particularly weather-tight. I accomplish this result by havingchain lugs extending out from the sash plate, which lugs extend throughsecond openings, through a partition in the jamb, either into the chainpockets or into inner chambers as may be desired. The chain lugs are soarranged that the lug for the lower sash is approximately at the bottomof that sash, and the lug for the upper sash is near the top. Theopenings through which these lugs pass do not extend the entire heightof thesash. The one for the lower sash lug extends up only for thebottom half of the jamb height, whereas the opening for the upper chainlug extends down for the upper half of the sash height. A limitation oflateral movement of the sash can be taken care of by bending a portionof the sash plate at a right angle so that it will rub either againstthe rear of the inner jamb wall or against the partition formed,

within the jamb. As is now usual with windows of this type, means isprovided for preventing a direct passage of air back of the inner jambwall from one opening in the jamb face to the other opening. Since thesashes have meeting rails which overlap each other at the middle of thewindow, when in closed position, the lower sash will extend up somewhatabove the top of the opening for the lower sash'chain lug, and in thesame way the upper sash will go below the upper openmg.

By building my window in this way, the

opening below the upper sash and above the lower sash is completelyclosed when the window is closed, and there is no chance for anysubstantial leakage from one of these openings to the other, as forexample,

- through the holes for the sash chains. At

the same time, if any cold air leaks in around the outer seal of eitherof the sashes, this will not build up an immediate pressure to forcecold air into the room, but will be cushioned not only by the spacebetween the 1 showsa face view of one jamb with the 2 is a sectionsashes shown in section; FigF.

1g. 3 is a secon line 2-2 of Fig. 1, and tion on line 3-3 of Fig. 2.

In these drawings, 2 is the usual tubular jamb having an inner faceportion 3 and a portion 4 bent inwardly at a slight bevel. A plate 5 isconnected to the jamb tube 2 by a hook 6 and has a portion 7 bentinwardly at a slight bevel corresponding to the portion 4 previouslydescribed. A parting strip 8 completes the contour of the inner jambwall. The general construction of sills and lintels shown here followsapproximately the construction shown in my earlier Patent No; 1,549,711and need not be described here in detail. A plate 9 which extendsupwardly from the middle of the jamb is at-v from the bottom of pl: to 9until it meets the top of casting 11 which connects the jamb with thesill 12.

The upper sash 14 is provided with a plate 15 which extends between themember 4 and the parting strip 8 and is bent over at right angles at 16so as to extend between plate 9 and parting strip 8. Extending into thetubular j amb adjacent plate 9 is a chain lug 17 which is so ositionedthat when the window is closed, this lug will be adjacent the lintel. Inthe same way, lower sash 18 has a plate 19 the portion 20 bent over atright angles and a lug 21 which when the window is closed will lieadjacent the casting 11. The upper sash 14 can be lowered until lug 17strikes the top of plate 10 and lower sash 18 can be raised until lug 21strikes the bottom of plate 9.

When the window is closed, any cold air which passes between portiontand plate 15 of the upper sash will not only be cushioned by the spacebetween parting strip 8 and plate 9 but will also be able to enter thelarge tubular portion of the jamb 2 which will take up the pressure andwill prevent the moisture that may be carried by the air from beingblown through into the room; In the same way, any, air which may passbetween parting strip 8 and plate 19 will be cushioned and provided,for. Incidentally the weight chains will be entirely concealed andcannot be seen from any position. The window is an inexpensive one tomake and yet the parts can readily be removed; for example, the weights22 and 23 can be removed by loosening the screws which attach plate 5 toplate 9 and removing plate 5. Adjustment can be taken careof by havingan enlarged opening 24 in parting strip 8 through which will passscrew25 attaching the partin strip to both plates 9 and 10.

It is to e understood that the foregoing example is given by way ofillustration only and that many. modifications may bemade withoutdeparting from the spirit of my invention.

What I claim is:

1. A window-frame and sash construction comprising a jamb having twovertical openings in the members forming the inner face of the jamb,partitions behind said openings, means for preventing air from passingbetween said openings on the inner side of said partition, a second pairof openings through said partition, one of said openings running upsubstantially from the bottom of the jamb to the middle thereof, and theother running down substantially from the top of the jamb to the middlethereof, sashes having plates adapted to slide in said first-mentionedopenings, and having chain lugs adapted respectively to extend throughsaid second pair of openings.

2. A device as defined in claim 1, further characterized by the factthat the sash plates include portions adapted to contact with.

jamb members back of the inner face of the jamb to limit transversemovement of the sashes.

HARRY E. CAMPBELL.

